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ESWP:
International Bridge Conference®: Seminars
2009 Seminars
IBC Seminars are intensive, four-hour, single-topic focused sessions.
Each seminar requires an additional fee of $125. Please see the special
section on the Conference Registration
Form. Seating for each Seminar is limited, so please register early.
Professional Development Hours (PDHs) are provided upon request and verification.
State
of the Art Confined Soil Walls and Abutment, and Variations of Soil Nailing
Technologies - $125 (Additional Registration)
Presented: Tuesday, June 16; 8:30 am–12:00 noon
Moderator: Michael Adams, Senior Researcher, FHWA Turner
Fairbank Highway Research Center, McLean, Virginia; Robert Barrett,
TerraTask, LLC; Colby Barrett, TerraTask, LLC
Part One – History and Introduction (One hour)
The first half workshop presents a summary of 40 years of geotechnical
research in retaining walls, bridge abutments, open bottom box culverts,
reinforced soils, landslides and rockfall. This research was performed
by Colorado DOT, the US Forest Service, the Federal Highway Administration
and several agencies and universities. Expenditures on this research effort
exceeded 25 million dollars and the major conclusion presented here is
that smaller, lighter inclusions in granular soil produce stronger composite
behavior than do heavier, stiffer elements on wider spacing. Full scale
demonstrations show that variations in spacing of the inclusions approaches
exponential factors in some cases.
Several new tools, methods and techniques will be presented that are
not as yet in standard practice. Earthquake Wings (a new and better way
to build abutments in seismic regions) will be presented. Scour prevention
methods will be introduced. The presentation concludes with recent constructions
with the Soil Nail Launcher, including Launched Nails, Launched Micropiles
and Launched Scour Micropiles. Super Nail concepts will also be discussed.
Part Two – Design Methods for Geosynthetically Confined
Soil Walls, Abutments, Piers, Box Culverts, Soil Nails and Micropiles.
(Two Hours)
This session presents analytical methods for designing state of the art
composites. Examples of field constructions and including cost estimating
will be presented. This session will also discuss the reasons for failures
in MSE constructions.
At the end of the seminar, the participants will be able to:
- Gain awareness of geotechnical research into composite soil behavior
- Utilize analytical methods for designing various structures and foundation
types using geosynthetically confined soil
- Increase their knowledge base of state-of-the-art construction methods
and techniques
Highway
Tunnel Inspection, Maintenance and Operation - $125 (Additional Registration)
Presented: Tuesday, June 16; 8:30 am–12:00 noon
Moderator: Jesus Rohena, FHWA
This seminar will focus on the sharing of the best practices for inspection,
maintenance, and operation of Highway Tunnels. Topics to be covered include:
- Design, Construction, Inspection, Maintenance and Operation
Fire Safety Modeling – Consultant
- Highway Tunnel Inspection, Maintenance and Operation - PennDOT
- Structural, Mechanical, Electrical
- Ventilation
- Appurtenances
At the end of the seminar the participants will be able to:
- Understand the principles of good practices in inspection, maintenance
and operation
- Establish contacts and reference sources
- Develop sound and effective programs for tunnels
Target Audience: Federal, state and local highway agency engineers,
and consultants in materials, design, construction, inspection, maintenance
and operation of tunnels.
Load
Rating of Gusset Plates of Connections of Steel Truss Bridges - $125
(Additional Registration)
Presented: Wednesday, June 17; 8:30 am–12 noon
Moderator: M. Myint Lwin, P.E., S.E. FHWA
This seminar will focus on two goals:
- To provide bridge engineers with the fundamental knowledge to use
the recent FHWA guidance to load rate gusset plates in accordance with
the AASHTO LRFR and LFR methods
- Lessons learned by State and Consultant Bridge Engineers in addressing
the impact of the evaluation requirements for existing truss bridges.
Topics include:
- NTSB Recommendations, FHWA Technical Advisories and FHWA Guidance
on Load Rating of Gusset Plates of Steel Truss Bridges using LRFR
- A State’s Perspective in Using LRFR in the Load Rating of Gusset
Plates
- A State’s Perspective in Using LFR in the Load Rating of Gusset
Plates
- Using Finite Element Analysis in Load Rating of Gusset Plates
- Application of Software in the Load Rating of Gusset Plates
At the end of the seminar, the participants will be able to:
- Understand the background behind the FHWA Guidance and the detailed
steps involved in load rating by the LRFR and LFR methods
- Gain a good knowledge on how load ratings are done by State and Consultant
Bridge Engineers
- Develop sound and effective programs for insuring structural adequacy
of bolted and riveted of gusset connections in steel truss bridges in
compliance with NBIS
Target Audience:
Federal, state and local highway agency engineers, and consultants in
design, construction, and inspection of steel truss bridges.
A list of Workshops can be found on the Workshops
page.
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